Well, been a long time since I have been here but thought I would post cause I'm so happy. Just put the new flt level 4 trans in cause the stock trans didn't like the ss4000. Shaved 2 tenths with the swap, before did 12.51, now its doin 12.33 all day! Think that's good for a stock internal ls1. 60' was 1.7. Mph was 109.